TY  - SER
AU  - Yoo, Youn-Min
AU  - Kim, Dae-Kyong
AU  - Kwon, byung-II
TI  - Optimal Design of Permanent Magnetic Actuator  for  Vacuum Circuit Brealer Using Fem
KW  - Actuator
KW  - Finite Element Analysis
KW  - Optimal Design
ER  -